Fig. 5
From: Lesions involving the outer surface of the bone in children: a pictorial review
Fibrous cortical defect. A 13-year-old boy with a fibrous cortical defect in the proximal right postero-medial tibia. An antero-posterior radiograph of right tibia a shows an intra-cortical lucency with a thin rim of sclerosis (arrow). Axial T1 b and T2 fat-suppressed c images show a hypointense intracortical lesion with no medullary involvement. A hyperintense rim is seen on the T2-weighted image (black arrow)